Scale-Driven Backend-Heavy Full Stack Engineer (Hybrid)

Kleinanzeigen; Madrid; Hybrid; EUR 60,000 - 120,000; Full time

Benefits offered by this job

Private health insurance

Gym Pass

Remote working allowance

Personal development budget

Flexible working hours

Annual holidays

Job summary

Kleinanzeigen, Germany’s leading online classifieds platform, is seeking a Backend-Heavy Full Stack Engineer to power high-traffic services. You’ll own end-to-end development from design to deployment, balancing robust backend with polished frontend in TypeScript and React.

You’ll work on microservices in Java/Spring Boot and Go, integrate with AWS/Kubernetes/Kafka, and contribute to CI/CD practices in a highly autonomous, hybrid team.

Qualifications

• Experience designing and scaling microservices with Java and Spring Boot.
• Hands-on experience with Go and frontend integration using TypeScript/React.
• Experience with high-throughput, low-latency systems.
• Familiar with CI/CD and Agile team practices.

Responsibilities

• Architect scalable microservices supporting 36M+ monthly users.
• Own full development lifecycle from design to deployment.
• Deliver end-to-end user experiences by integrating backend APIs with TypeScript/React frontends.
• Drive improvements in testing standards and CI/CD pipelines.

Skills

Java

Spring Boot

Golang

Python

TypeScript

React

NextJs

Kubernetes

AWS

Kafka

CI/CD

Tools

Vitest

Playwright

CloudFormation

Job description

Kleinanzeigen, Germany’s leading online classifieds platform, is seeking a Backend-Heavy Full Stack Engineer to power high-traffic services. You’ll own end-to-end development from design to deployment, balancing robust backend with polished frontend in TypeScript and React.

You’ll work on microservices in Java/Spring Boot and Go, integrate with AWS/Kubernetes/Kafka, and contribute to CI/CD practices in a highly autonomous, hybrid team.